Run tests / Add DOTNET_ environment vars (#2643) * Add DOTNET_ environment vars * Update tests/BenchmarkDotNet.IntegrationTests/MemoryDiagnoserTests.cs --------- Co-authored-by: Tim Cassell <35501420+timcassell@users.noreply.github.com>

Run tests / Add DOTNET_ environment vars (#2643) * Add DOTNET_ environment vars * Update tests/BenchmarkDotNet.IntegrationTests/MemoryDiagnoserTests.cs --------- Co-authored-by: Tim Cassell <35501420+timcassell@users.noreply.github.com> #962